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irinina [24]
3 years ago
6

a circle is centered on point b. points a, c and d lie on its circumference. if angle abc measures 40 degrees, what does angle a

dc measure?
Mathematics
1 answer:
grigory [225]3 years ago
3 0

Answer:

320 degrees

Step-by-step explanation:

There are 360 degrees in a circle. 360-40=320

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using a graph tool
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